baber/WOPTO huggingface dataset:
Patent GB-992601-A (GB)
Title: Adjustable phase-shift oscillator device
IPC: H02M7/5381
Filed: 1963-02-14
Abstract: 992,601. Transistor oscillator circuits; radiofrequency systems. AUXILEC. Feb. 14, 1963 [Feb. 15, 1962], No. 6060/63. Headings H3T and H4L. A first oscillator of the type in which two switching devices drive a square loop core between two states of saturation has its core winding coupled to a second oscillator of similar type so as to synchronize the oscillations, a voltage applied to one oscillator being variable so as to control the phase difference between the oscillations. Fig. 1 shows a first push-pull transistor oscillator T 1 , T 2  of the type which switches a square loop core 1 between its to states of saturation coupled to a second oscillator T 3 , T 4  of the same type. While the current is building up in transistor T 1  the voltage across winding E 1  subtracts from the supply voltage to transistor T 3  which is also assumed to be conducting. When core 1 saturates T 1  becomes non- conductive and T 2  conductive. The voltage across E 1  reverses so that it now adds to the supply voltage for T 3  and the core 2 more rapidly reaches saturation. When this occurs, the conductivity state of the transistors of the second oscillator reverses and current build up commences in the reverse sense. The phase of the output of the second oscillator (3A) is thus behind the first (3B) and the extent of the lag may be varied or modulated by varying the supply voltages U 1  and U 2  separately or together. By combining additively or subtractively the outputs of the two cores, pulses 3C and 3D may be obtained, the width of the pulses varying with the phase modulation.
Patent GB-669843-A (GB)
Title: Improvements in pistons
IPC: F16J1/00
Filed: 1949-03-07
Abstract: 669,843. Pistons. FLIGHT REFUELLING, Ltd., and NEEDHAM, C. H. LATIMERApril 24, 1950. [March 7, 1949] No. 6124/49. Class 122(i). A piston comprises a central core 8, a number of relatively flexible shim washers 11, of small thickness mounted on the core and having a small clearance in the cylinder, a number of thicker, rigid, spacing washers 12 of smaller diameter than the shim washers 11 being mounted on the core to alternate with the shim washers, and two end collars 9, 10 in fixed axial relationship with the core 8, between which collars the stack of shim washers and spacing washers is retained, the end collars being so axially spaced that the shim- and spacing washers have a small clearance to float endwise on the core. The shim washers 11 may have an appreciable diametral clearance on the central core. The diametral clearance between the spacing washers 12 and the cylinder may be of the order of thirty times the thickness of the shim washers and the thickness of the shim washers may be of the order of one five-hundredth of their external diameter. The end float of the stack may be of the same order as the thickness of each shim washer.
Patent GB-1157216-A (GB)
Title: Improvements in or relating to the Forging of Metallic Blanks
IPC: B21D43/04
Filed: 1967-02-09
Abstract: 1,157,216. Forging. MACHINENFABRIK HASENCLEVER A.G. 9 Feb., 1967 [10 Feb., 1966], No. 6155/67. Heading B3H. Apparatus for forging metal articles comprises a number of electrical upsetting devices 6 mounted on a rotatable turret 5 and means 22 for transferring an upset workpiece from the turret into a press die 19. Rod-shaped workpieces of round, oval, polygonal or flat crosssection, are lifted from a magazine 16 by a chain conveyor 13 and supplied to a transfer tube 15 along which they pass to a feed hopper 10 arranged above each of the six upsetting devices 6 mounted on the turret 5. This is driven by a motor (4), Fig. 1 (not shown). Each upsetting device comprises a pair of oil pressure cylinders 6 supplied by a pump from a tank D, a guide electrode (8), Fig. 1 (not shown), an anvil electrode (7) and a cylinder 9 for withdrawing the anvil electrode during upsetting. Heating current is supplied by transformers 11. The transfer means 22 comprises an arm 30, Fig. 5 (not shown), carrying gripping jaws 35 and mounted on a vertical shaft 23 driven continuously through gearing 26-29 from the turret 5. A spring drive (33) is provided between the shaft (23) and arm (30) so that the latter may be held stationary by adjustable stops (61), (63), Fig. 7 (not shown), whilst the workpiece is pushed into the die 19. This is effected by a spring-loaded lever 36 movable vertically by a roller (41) engaging a cylindrical cam (42). Two opposed jaws (35a), (35b), Fig. 6 (not shown), are mounted on the end of arm 30. Jaw (35b) is spring loaded and jaw (35a) is opened and closed during rotation of the arm by a cam (56) and gearing (48), (49). The jaws may transfer the workpiece to a second transfer arm (74), Fig. 9 (not shown), operated hydraulically which moves it into die 19. A safety device prevents operation of the press 1 unless the workpieee lies properly in the die 19.
Patent GB-420510-A (GB)
Title: Front wheel drive vehicle
IPC: B60K17/30
Filed: 1933-02-28
Abstract: 420,510. Vehicle spring-suspensions. DEWANDRE, A., 2, Rue du Vieux-Mayeur, Liege, Belgium, and LIENHARD, G., 6, Rue Leon Vaudoyer, Paris. Feb. 28, 1933, No. 6162. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 30, 1933]. [Class 108 (ii)] [See also Group XXXI] In an electrically-driven vehicle of the " trolley bus " type, a motor 7 situated in the longitudinal axis of the vehicle at the front end under the floor 4 of the driver's cabin, drives independently sprung front steering wheels 11 through a clutch 9, bevel and toothed gearing 15-19, a differential 20, and universally jointed shafts 28, the wheels being mounted on stub axle brackets journalled at their upper ends in bearings 23 con nected by pivoted rods 24 24<a> to brackets 25 on the chassis frame members 22 whilst the lower ends are journalled in bearings carried by the ends of a transverse suspension spring 26. The steering arms 31 are connected by rods 32 to arms 33, 34 of a rock lever 35, 37, mounted on a pivot 36 and connected by a rod 39 to an operating arm 40 on the steering column 41. The arrangement allows the chassis side members 22 to be downswept behind the front wheels, providing for a low rear carrying platform.
Patent GB-728264-A (GB)
Title: Improvements in making unsaturated polyester resin-glass fibre laminates
IPC: C03C25/40
Filed: 1953-03-06
Abstract: 728,264. Laminated sheet materials. UNION CARBIDE & CARBON CORPORATION. March 6, 1953 [March 18, 1952], No. 6207/53. Class 140. Glass fibres are sized with a solution or emulsion of a vinylpolysiloxane and then laminated by means of a heat-curable unsaturated polyester resin. The polysiloxane may be made by hydrolysing and condensing a vinylhalogenosilane or vinylalkoxysilane (e.g. vinyltrichlorosilane, vinyltriethoxysilane), and it may be applied as an emulsion or solution in toluene. After sizing, the fibres, which may be in the form of a glass cloth, may be heated to cure the siloxane. An alkanolamine may be present in the solution as a curing catalyst. The unsaturated polyester binder may be formed from glycol and an unsaturated dibasic acid such as maleic acid, and it may be applied in solution in styrene. The polyester may be modified with allyl alcohol, or copolymerized with styrene, vinyl acetate or methyl methacrylate. Curing may be carried out by heating at an elevated temperature.
Patent GB-106100-A (GB)
Title: Improvements in or relating to Astronomical Instruments.
Inventor: BENOIT ANTOINE-FRANCOIS
IPC: G01C21/02
Filed: 1917-05-02
Abstract: 106,100. Benoit, A. F. May 2, 1916. [Convention date]. Angle-measuring instruments; latitude and longitude instruments. -- Instruments for determining the latitude and the local sidereal time by the simultaneous observation of two stars, and comprising a telescope with reflecting means and a graduated circle the plane of which is perpendicular to the axis of the telescope, are constructed, according to the invention, so that light from each star is received by the whole of the objective, and with means by which the inclination of the telescope may be read directly to obtain the latitude. As shown, the instrument comprises a telescope 1 carrying a fixed circle 5 provided with a reading mark or vernier. A graduated and rotatable circle 6, carrying prisms 8, 8<1>, 9, is mounted on the circle 5, the prisms 8, 8<1> having one of their contacting surfaces half-silvered, and the system being such that rays striking the exposed faces of the prisms 8, 9 are deflected through angles equal to the polar distances of the stars to be observed and in planes in accordance with the right ascension of the stars. A collimator 2 carrying a bubble level 3 is secured to the telescope so that the angle between its axis and the axis of the telescope is equal to the mean co-latitude of the district in which the instrument is to be used, a transparent plate at their junction reflecting an image of the level into the field of the telescope. The level 3 may be rotated about an axis passing through a cross engraved on it by means of a worm 10 and a toothed sector 10<1>, the amount of rotation being indicated by a pointer 11 on a drum 12. When making an observation the instrument is set up so that the image of each star and of the bubble of the level and the cross thereon fall on the cross wires of the telescope. When this has been done the axis of the telescope will be parallel to the axis of the earth, and the readings of the circle 6 and of the drum 12 will give respectively the local sidereal time and the latitude. The longitude may be obtained from the difference between the sidereal time of the meridian of origin and the local sidereal time, and the instrument may be modified by making the circle 5 rotatable, and providing it with graduations which may be read against an index or vernier fixed on the telescope, so that the subtraction may be effected mechanically. The prism system shown is suitable for an instrument by which the pole star and an equatorial star are observed, and may be modified to make the instrument suitable for other stars, as by replacing the prism 9 by a prism similar to the prism 8 but deviating through a different angle. The prism substituted for the prism 9 may be mounted on a graduated platform to facilitate its setting relatively to the prism 8 in accordance with the right ascension of the star observed through it.
Patent GB-1181173-A (GB)
Title: Method of preparing Antibodies
Inventor: PLESCIA OTTO J
IPC: C07K16/00
Filed: 1967-02-09
Abstract: 1,181,173. Preparing antibodies &c. RESEARCH CORP. 9 Feb., 1967, No. 6340/67. Heading A5B. [Also in Division C3] An antibody which is specific to a substance which is an oligomer, polymer or organized unit having acidic groups provided by nucleotide, aminoacid or saccharide residues is produced by administering as an antigen to animal tissue capable of antibody synthesis a complex formed by basic protein (i.e. a polypeptide having a set positive charge) and the said substance and collecting a fluid or cells containing the antibody, which may be used in preparing immunizing preparations. Specified substances are polypeptides, bacteria or parts thereof (e.g. streptococcus cell wall mucopeptide) viruses (e.g. influenza virus, or Bittner mammary tumour virus), tumour cell or sub-unit thereof, a ribosome or a plant or animal polysaccharide. Suitable basic proteins are basic mammalian serum protein, alkylated mammalian serum albumin and methylated bovine serum albumin and methylated bovine gamma globulin.
Patent GB-231154-A (GB)
Title: A tightening or packing material for any kind of fitting and flanges
IPC: F16J15/14
Filed: 1925-03-09
Abstract: 231,154. Ebbesen, M. P. March 18, 1924, [Convention date]. Joint-making packing.-A joint-making packing is composed of a fatty substance, oil, alkali, graphite, chalk, an alkaline carbonate, starch, sugar, water-glass, and lamp-black. The composition may comprise 1000 parts of animal fat, train oil, linseed oil, hemp oil, or turnip oil, &c., saponified with caustic soda or caustic potash, 200 parts of water-glass, 150 parts of starch, a solution of from 20 to 50 parts of potassium or sodium carbonate and 20 to 100 parts of sugar. 100 parts of the mixture is mixed with 100 parts of graphite and 200 parts of chalk, and about 10 parts of pure soot.
Patent GB-578057-A (GB)
Title: Improvements in screw displacement pumps
IPC: F04C2/16
Filed: 1944-04-05
Abstract: In a screw displacement pump for non-lubricating fluids, especially aviation spirit, the pump body is made of a thermosetting plastic or metal coated with the plastic, and the rotors are made of metal or vice versa.  The plastic may be a phenol-formaldehyde condensate and may be of the fabric laminated type.
Patent GB-556049-A (GB)
Title: Improvements relating to glass houses, frames or shelters for plants
IPC: A01G9/20
Filed: 1942-05-11
Abstract: 556,049. Horticultural frames. STEVENSON, L., MUNT, R. H., and WIGGINS & CO. (HAMMERSMITH), Ltd. May 11, 1942, No. 6376. [Class 20 (i)] A glass house or horticultural frame has the panels or walls formed solely from sheets of an asbestos composition and sheets of a transparent material, the latter being carried in a detachable manner in a framework.of strips of an asbestos composition. The side panels 1 are formed of asbestos composition with inclined upper edges and are joined to the front and rear panels 2 by angle-bars 3 of asbestos composition. To the upper edges of the side panels are secured strips 16 forming guides for the top light, which comprises a rectangular framework of asbestos composition 5, 7, spacers 8, glass sheets 6 and upper and lower longitudinal transverse arcuate section bars 9 and 11 respectively for securing the glass sheets to the composition frame. Resilient members 10 are interposed between the arcuate members and the glass sheets, and the securing bolts 12 pass through the members and the resilient cushions. The strips for the glass frame may be of tubular form with recesses to receive the edges of the sheets; alternatively the arcuate section bars may be omitted or replaced by strips of asbestos or wood with a central ridge.
Patent GB-286669-A (GB)
Title: Process for the manufacture of vat dyestuffs of the anthanthrone series
IPC: C09B3/68
Filed: 1928-03-01
Abstract: 286,669. I. G. Farbenindustrie Akt.- Ges. March 8, 1927, [Convention date]. Samples furnished. Anthanthrone derivatives. - Vat dyes of the anthanthrone series are obtained by condensing a halogenated anthanthrone with an aminoanthraquinone, or a derivative or substitution product thereof, in the presence of an acid-binding agent and a catalyst, e.g. copper or a copper compound or salt. In examples, synthetic dibromanthanthrone (from 1 : 1<1>-dinaphthyl-4 : 4'-dibrom-8 : 8<1>-dicarboxylic acid) and the di-bromanthanthrone obtained by brominating anthanthrone in oleum are heated with alpha- or #-aminoanthraquinone or with 1-benzoylamino-4-(or 5-) aminoanthraquinone ; the products dye cotton in various shades of grey, blue, or brown from a hydrosulphite vat. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the condensation of tri or tetra-bromanthanthrones with three or four molecules of an aminoanthraquinone, e.g. monobenzoyl-1 : 5-diaminoanthraquinone. This subject-matter does not appear in the Specification as accepted.
Patent GB-557047-A (GB)
Title: Improvements in and relating to flushing valves actuated by the pressure of the controlled fluid
IPC: E03D3/04
Filed: 1942-05-13
Abstract: 557,047. Flushing valves. BRITISH BRASS FITTINGS, Ltd., and SALINGER, G. T. May 13, 1942, No. 6523. [Class 135] A flushing valve actuated by fluid pressure under the control of a manually - actuated auxiliary valve has the pressure chamber above the main valve refilled through an orifice 24 regulated by a conical member 25 which during each operation of the main valve is mechanically forced back from the orifice to enlarge the passageway for cleaning purposes. In the form shown in the Figure the main valve 4 has a facing washer 5 adapted to engage a seat 6 and is slidably mounted in a cylinder formed by a depending skirt 30 formed on a removable cover 29. The auxiliary valve member 9, loaded by a spring 12, is housed in a recess in the main valve and co-operates with a seating washer 11 held in place by a perforated cap 37 screwed into the recess. The auxiliary valve spindle is provided with a sleeve 14 slidably mounted on an enlargement 15 and adapted to be operated by a rod 16 fitted with a push-button 17 slidably engaging a member 18. Leakage past the rod 16 is prevented by a packing 19 and gland 21 acted on by a spring 22 which also acts on a collar on the spindle to return the pushbutton to its inoperative position. Fluid from the main inlet 1 passes through a passage 8, bore 31 and orifice to the pressure chamber 7 above the main valve. When the button is depressed the auxiliary valve is tilted to allow fluid in the pressure chamber to escape to the main outlet through a passage 10. This permits the inlet pressure to raise the valve to the top of the pressure chamber to open the main valve. During this movement the cap 37 engages and lifts the conical member against the action of a spring 28 to enable fluid to flush the control orifice. Normally the flange 26 on the member 25 is held by a spring against lugs or a flange on a screwed adjusting member 32 pressed into place after the member 25, spring 28 and member 32 have been assembled.
Patent GB-829901-A (GB)
Title: Apparatus for indicating speed on rectilinear scales in tachometers, particularly for self-propelled vehicles
IPC: G01P1/08
Filed: 1956-03-01
Abstract: 829,901. Speedometer indicating mechanisms. SOC. PER AZIONI FRATELLI BORLETTI. March 1, 1956 [May 25, 1955; Oct. 28, 1955], No. 6524/56. Class 106 (4). The speed responsive element of a tachometer moves a ribbon 47 stretched between two drums 45, 46 along a scale, the ribbon having an indicating mark formed, e.g., by a coloured portion 12 and being maintained under tension so as to show through an elongated window parallel to the scale, the ribbon 12 being open-ended and a closed loop being completed through pulleys 41, 43. In one form a magnet 38 driven by the shaft 49 is surrounded by a cap 37 fixed to a drum 39 over which passes a wire 40 connected to the pulleys 41, 43 on shafts 42, 44 carrying drums 45, 46 to which the ends of the ribbon are fixed, the wire and the ribbon being wound in opposite directions. The pulley 43 and drum 46 are loose on the shaft 44 and have pins acted on by a spring 48 to maintain tension in both the wire and the ribbon. A spring 50 opposes the turning of the cap 37 in proportion to the speed of the vehicle &c. The wire and ribbon may be fixed between idler pulleys tensioned by a spring and pulleys or drums forming part of the cap 37 of the speed-responsive element. In a further modification the wire is dispensed with and the ribbon passes from the cap of the magnet over two idler pulleys to a drum coaxial with the magnet cap and tensioned by a spiral spring.
Patent GB-459625-A (GB)
Title: Improvements in and relating to electric remote control systems
IPC: G08C19/38
Filed: 1936-03-04
Abstract: 459,625. Control of several motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. March 4, 1936, No. 6557. Convention date, March 4, 1935. [Class 38 (iii)] A remote control system comprises a pair of coupled transmitter motors M1, M2, a pair of coupled receiver motors M3, M4, the motors of each pair having their stators reversely connected, and the rotors of corresponding transmitter and receiver motors being interconnected, and a further motor M5 for rotating the motors M1, M2, the motor M5 being speed controlled by a controller which, after first causing the motor M5 to operate, serves to render it ineffective, and short-circuit the rotor windings of one transmitter motor and one receiver motor, thereby to cause them to operate as asynchronous motors maintained in synchronism by the other transmitter and receiver motors. The invention is described as applied to the remote control of a direction frame P operated by the receiver motors. The motor M5 is a direct-current motor supplied from a potentiometer controller having an intermediate controlling position 1, in which the motor M5 is inoperative, and extreme reverse controlling positions 3-3. Upon operation of the controller from its position 1, the motor M5 operates, and, a clutch K being engaged, drives the motors M1, M2, which transmit the movement to the receiver motors. The speed at which the motor M5 operates increases with increasing movement of the controller from its position 1. When the frame P has been adjusted to give a minimum sound in a headphone, the controller is moved to its position 1 and the motor M5 stops. It is then necessary to rotate the frame P through 180‹, and, for this purpose, the controller is moved from its position 1 to either of its extreme positions 3-3. This results in first connecting the motor M5 for operation to give a starting movement for the motors M1, M2, and then, when the extreme position is reached, a relay Al or A2 and an electromagnet a are energized. The electromagnet a uncouples the clutch K and the relay A1 or A2, causes one transmitter motor and one receiver motor to operate as asynchronous motors, maintained in synchronism by the other transmitter and receiver motors. When minimum sound is obtained again in the headphone, the controller is returned again to its position 1, and operation of the motor M5 may be prevented, by means of a push-button. Indicators S are coupled to the receiver and transmitter motors.
Patent GB-434213-A (GB)
Title: Improvements relating to the sealing of cardboard, fibreboard or like boxes
IPC: B65B51/14
Filed: 1934-03-02
Abstract: 434,213. Packing. HACKETT, A. G., 31, Barclay Road, Warley Woods, near Birmingham, and BIRD & SONS, Ltd., A., High Street, Deritend, Birmingham. March 2, 1934, No. 6651. [Class 94 (i)] In order to secure the lids or flaps of cardboard, fibre board, or like boxes after closing and the application of adhesive, the boxes 30 are fed into position on a roller conveyer 12 beneath a pressure head 16, which is lowered to press the top and to secure adhesion. The head is carried by a rod 17 sliding in bearings in a bracket 15, and operated by a toggle device 24, 25. A swivel joint may be interposed between the plate head and the rod. The lower arm 25 of the toggle is pivoted at 20 to the bracket 15, and at 23 to the upper arm 24. The upper end of the arm 24 is pivoted at 23 to a ring 22 on the rod 17. A handle 26 is formed on the pivot 23. The head is shown in full lines in its upper position in Fig. 3 upon throwing the toggle over to the left, the ring 22 and consequently the head 16 falls to the lower position shown in broken lines, and rests upon the top of the box, the weight being sufficient to secure adhesion. The ring 22 is adjustable with relation to the rod 17 by means of a handle 32 attached to a pin passing through the ring and adapted to engage with one of a series of holes 31 in the rod. A projection 27 on the link 25 engages a stud 28 on the bracket 15 to maintain the head in its raised position. The bracket may carry an adhesive receptacle.
Patent GB-310144-A (GB)
Title: Improvements in folding tables and other folding furniture
Filed: 1928-03-03
Abstract: 310,144. North of England School Furnishing Co., Ltd., and Sneddon, J. P. March 3. 1928. Folding tables.-In a folding table &c. of the kind with legs at each end adapted to fold under the table &c. top the stays B<1> which retain the legs A<1> in the erect position consist each of two inclined paits b<2>, b<4> connected by a straight part b, forming an approximately U-shaped device pivoted between the legs A<1>. The part b moves over a diagonally. arranged guide C on the underside of the table top, and engages with a catch E which, as shown in Fig. 4, consists of strip metal with a recess e' for receiving the part b of the stay B<1>. It is forced down by a spring F, and released by means of a finger piece E. In a modification, Fig. 6, the catch consists of a hook-like latch forced up by a spring so as to retain the part b, which may be released by pressing on the tail g<1>.